Water-tank



' PATENTED JAN. 12, 1904. J. 'I'.DONAHOO.

WATER TANK.

APPLICATION FILED FEB. 25. 1903. N0 MODEL.

,Mii

7' TOHNE YS.

` inafter described. In theaccompanying drawings, Figure 1 is l `mainly a central vertical section of the apparatus i tank proper. Fig. 3 is a perspective view of M 3" the cover of the tank.

N5. maarre.

`UNITED STATES Patented january 12, 1904.

JAMES TABB DONAHOO, OF EDGAR, NEBRASKA.

WATER-TANK.

SPECIFICATION forming part of Letters Patent Nwo. 749,273, dated January 12, 1904. Application filed February 25, 1903. Serial No.-14=4,932. (No model.)

To all, whom it may concer-7?,.-

Be it known that I, JAMES TABB DoNAHoo,

` `a citizen of the United States, and a resident of Edgar, in the county of Clay and State of My improved tank is so constructed as to resist great pressure from without or within,

and while adapted for general use is particu-` larly-designed i'or use in connection with an air forcing and pressure apparatus, as here- Fig. 2 is a plan view of the waterone of the sector-shaped plates comprising Fig. 4 is a detail crosssection illustrating the manner of securing the sector-shaped plates together.

` At a point below the source of water-supply I construct a water tankor receiver A and .i `provide it with an air-tight cover B. Water is admitted to this tank through a pipe C, which is laid underground and extends to the i higher' source oi' water-supply. It is provided at c with a check-valve, which opens toward the tank, and at c with a stop-cock, which may be operated by a vertical rod c2, arranged in a tube c3, set in the ground. The valve or 3 stop-cock o' enables the water to be cut off i y whenever desired, and the check-valve c prevents the reiiow of water from the tank. A

discharge-pipe D is also connected with the y bottom of the tank and laid underground. It j is likewise provided with a check-valve d openl `ing outward.

` `by a pipe @with the top or highest portion oi' the conical cover B of the water-tank.

An air-pump E is connected l This pump will be operated by any suitable means and may be located at any desired distance from the tank and at any desired elevation above the saine.

y y tern A is constructed of cement, and it is prol vided around its upper edge with a rabbet or shoulder a, upon which the edge of the metal cover B rests.

y supported upon the flanges f of a vertical i post F, that is provided with a suitable base The body of the tank or cis- The center of the cover B is `f', set in the center of the tank or cistern A. The cover B is constructed in sections, which, as shown in Figs. 2, 3, are sector-shaped and provided with iianges b, formed by turning up the edges of each piece. These iianges 6 are provided with perforations for receiving rivets. (See Fig. A.) A thick layer of waterproof cement B is applied over the entire cover B and serves to protect and cover the joints of the same as well as to exclude frost and heat to a great degree, so that the water in the tank 'is kept comparatively cool in summer and comparatively warm in winter. The edges of the cover B are rmly yet detachably secured to the tank or cistern A by means of long bolts Zi', which extend down through the cistern and are provided with nuts on the under side of the same. By this means and the cement cover I forni an air-tight joint between the cover and the tank.

When the tank is entirely or partly filled with water, it is apparent that the latter may be forced out through pipe D and that the air pressure required for this purpose within the tank must correspond to the height to which it is required to elevate the water.

It is obvious that the air-pump must be stopped and the air in tank allowed to escape in order to permit the tank to relill with water. The air escape may be effected by any suitable meansmas, for example, by the stopcock with which the cylinder of an air-pump is commonly provided.

An air safety-valve is shown at G as an attachment of the tank. It may be set to operate at a pressure slightly greater than that required for elevating the water to the desired height, so that the air-pump can never be operated to apply undue pressure in the tank.

What I claim isl. The combination, with a water-tank having a rabbet at the top, of a cover whose edge rests in said rabbet, and bolts passing through said edge and through the body oi' the tank, substantially as shown and described.

2. The combination, with the tank proper and a central post having a base which is set in the tank proper and top iianges as described, of a cover resting at its center upon the said flanges and at its edge upon the top ot' the IOO tank, means for securing the cover in place, and a cement layer applied to the said cover, substantially as shown and described.

3. The combination, With the tank proper having a rabbeted edge and a central post having top anges, of a cover supported at the center upon the anges of the post and at its edge upon the rabbet of the tank, substantially as shown and described.

4. The improved Water-tank, having a con- 

